Alpha, beta-unsaturated diazoketones as platforms in the asymmetric synthesis of hydroxylated alkaloids: total synthesis of 1-Deoxy-8,8a-diepicastanospermine and 1,6-dideoxypicastanospermine and formal synthesis of plumiliotoxin 251D - Bernardim, Barbara; Pinho, Vagner D; Burtoloso, Antonio Carlos Bender (Journal Organic Chemistry, 2012)